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Finding the Fourth Proportional to 250,363.16, 345,499.70 and 135,644.07

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Solution

The fourth proportional to 250,363.16, 345,499.70 and 135,644.07 is: 187,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,363.16 : 345,499.70 = 135,644.07 : x
  2. Step 2: Convert to fraction form
    250,363.16/345,499.70 = 135,644.07/x
  3. Step 3: Cross multiply
    250,363.16x = 345,499.70 × 135,644.07
  4. Step 4: Simplify right side
    250,363.16x = 46,864,985,491.78
  5. Step 5: Solve for x
    x = 46,864,985,491.78/250,363.16
  6. Step 6: Final answer
    x = 187,188.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.